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-.\" Copyright (c) 1983, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"	@(#)4.t	8.1 (Berkeley) 6/8/93
-.\"
-.NH 1
-Setting up
-.PP
-The 4.3BSD release comes with the necessary programs 
-installed and with the default line printer queue
-created.  If the system must be modified, the
-makefile in the directory /usr/src/usr.lib/lpr
-should be used in recompiling and reinstalling
-the necessary programs.
-.PP
-The real work in setting up is to create the
-.I printcap
-file and any printer filters for printers not supported
-in the distribution system.
-.NH 2
-Creating a printcap file
-.PP
-The 
-.I printcap
-database contains one or more entries per printer.
-A printer should have a separate spooling directory;
-otherwise, jobs will be printed on
-different printers depending on which printer daemon starts first.
-This section describes how to create entries for printers that do not
-conform to the default printer description (an LP-11 style interface to a
-standard, band printer).
-.NH 3
-Printers on serial lines
-.PP
-When a printer is connected via a serial communication line
-it must have the proper baud rate and terminal modes set.
-The following example is for a DecWriter III printer connected
-locally via a 1200 baud serial line.
-.DS
-.DT
-lp|LA-180 DecWriter III:\e
-	:lp=/dev/lp:br#1200:fs#06320:\e
-	:tr=\ef:of=/usr/lib/lpf:lf=/usr/adm/lpd-errs:
-.DE
-The
-.B lp
-entry specifies the file name to open for output. Here it could
-be left out since ``/dev/lp'' is the default.
-The
-.B br
-entry sets the baud rate for the tty line and the
-.B fs
-entry sets CRMOD, no parity, and XTABS (see \fItty\fP\|(4)).
-The
-.B tr
-entry indicates that a form-feed should be printed when the queue
-empties so the paper can be torn off without turning the printer off-line and
-pressing form feed.
-The
-.B of
-entry specifies the filter program
-.I lpf
-should be used for printing the files;
-more will be said about filters later.
-The last entry causes errors
-to be written to the file ``/usr/adm/lpd-errs''
-instead of the console.  Most errors from \fIlpd\fP are logged using
-\fIsyslogd\fP\|(8) and will not be logged in the specified file.  The
-filters should use \fIsyslogd\fP to report errors; only those that
-write to standard error output will end up with errors in the \fBlf\fP file.
-(Occasionally errors sent to standard error output have not appeared
-in the log file; the use of \fIsyslogd\fP is highly recommended.)
-.NH 3
-Remote printers
-.PP
-Printers that reside on remote hosts should have an empty
-.B lp
-entry.
-For example, the following printcap entry would send output to the printer
-named ``lp'' on the machine ``ucbvax''.
-.DS
-.DT
-lp|default line printer:\e
-	:lp=:rm=ucbvax:rp=lp:sd=/usr/spool/vaxlpd:
-.DE
-The
-.B rm
-entry is the name of the remote machine to connect to; this name must
-be a known host name for a machine on the network.
-The
-.B rp
-capability indicates
-the name of the printer on the remote machine is ``lp'';
-here it could be left out since this is the default value.
-The
-.B sd
-entry specifies ``/usr/spool/vaxlpd''
-as the spooling directory instead of the
-default value of ``/usr/spool/lpd''.
-.NH 2
-Output filters
-.PP
-Filters are used to handle device dependencies and to
-do accounting functions.  The output filtering of
-.B of
-is used when accounting is
-not being done or when all text data must be passed through a filter.
-It is not intended to do accounting since it is started only once,
-all text files are filtered through it, and no provision is made for passing
-owners' login name, identifying the beginning and ending of jobs, etc.
-The other filters (if specified) are started for each file
-printed and do accounting if there is an
-.B af
-entry.
-If entries for both
-.B of
-and other filters are specified,
-the output filter is used only to print the banner page;
-it is then stopped to allow other filters access to the printer.
-An example of a printer that requires output filters
-is the Benson-Varian.
-.DS
-.DT
-va|varian|Benson-Varian:\e
-	:lp=/dev/va0:sd=/usr/spool/vad:of=/usr/lib/vpf:\e
-	:tf=/usr/lib/rvcat:mx#2000:pl#58:px=2112:py=1700:tr=\ef:
-.DE
-The
-.B tf
-entry specifies ``/usr/lib/rvcat'' as the filter to be
-used in printing \fItroff\fP\|(1) output.
-This filter is needed to set the device into print mode
-for text, and plot mode for printing
-.I troff
-files and raster images (see \fIva\fP\|(4V)).
-Note that the page length is set to 58 lines by the
-.B pl
-entry for 8.5" by 11" fan-fold paper.
-To enable accounting, the varian entry would be
-augmented with an
-.B af
-filter as shown below.
-.DS
-.DT
-va|varian|Benson-Varian:\e
-	:lp=/dev/va0:sd=/usr/spool/vad:of=/usr/lib/vpf:\e
-	:if=/usr/lib/vpf:tf=/usr/lib/rvcat:af=/usr/adm/vaacct:\e
-	:mx#2000:pl#58:px=2112:py=1700:tr=\ef:
-.DE
-.NH 2
-Access Control
-.PP
-Local access to printer queues is controlled with the
-.B rg
-printcap entry.
-.DS
-	:rg=lprgroup:
-.DE
-Users must be in the group
-.I lprgroup
-to submit jobs to the specified printer.
-The default is to allow all users access.
-Note that once the files are in the local queue, they can be printed
-locally or forwarded to another host depending on the configuration.
-.PP
-Remote access is controlled by listing the hosts in either the file
-/etc/hosts.equiv or /etc/hosts.lpd, one host per line. Note that
-.IR rsh (1)
-and
-.IR rlogin (1)
-use /etc/hosts.equiv to determine which hosts are equivalent for allowing logins
-without passwords. The file /etc/hosts.lpd is only used to control
-which hosts have line printer access.
-Remote access can be further restricted to only allow remote users with accounts
-on the local host to print jobs by using the \fBrs\fP printcap entry.
-.DS
-	:rs:
-.DE